const express = require("express");
const path = require("path");
let app = express();
app.get("/", (req, res) => {
  // 3000端口加载页面，请求4000端口的数据
  res.sendFile(path.join(__dirname, "./views/index.html"));
})
app.listen(3000, () => {
  console.log("server run at 3000");
});